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Comments (58)

What do you think?

UndertaleYellowFan @UndertaleYellowFan

Gaster?

Sandrik070812 @Sandrik070812

How do I join the team? I don't know how to program, but I have a lot of enemy and boss concepts. I can be a concept artist.

Tremiorgunderzilla @Tremior_Gunderzilla

What does golf club attack look like when fight button was activated?

Mango @GiannaHart

is there gonna be a sans fight??!!

DarkFlameWeaver @DarkFlameWeaver

Seems interesting. wonder what it will be like

* You don't belong here...

At least not yet! Welcome to Undertale LOST, a fangame of Undertale!

Here you play as an "unnamed" teenager who's been thrown into the timeline by complete accident, simultaneously falling into the underground! Though your presence holds more problems than it does solutions, so you'll have to make huge decisions that will affect both monsters and humans while making plenty of friends! ~~maybe.~~ Are you up for the challenge?

The choice is completely up to you whether or not you want to be a good person, though just know each choice has it's consequences...

AVAILABLE WHEN I GET MY CRAP TOGETHER

Undertale LOST will only be released on GameJolt and Itch, any other site that contains this game is not legit. Don't download it. Please.
This fangame will contain some spoilers for Undertale, that's unavoidable. It's also recommended that since both DELTARUNE and UNDERTALE mechanics will be implemented, you take the time to understand them so you don't get lost.
UNDERTALE is owned by Toby Fox. If you haven't already, play the original game!